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boundaries_handler.py
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import numpy as np
import sys
import os
import pdb
class read:
def __init__(self, filepath):
self.file_path = filepath
if not os.path.isfile(self.file_path):
print()
print("can´t open boundary condition file!")
print('The file {} does not exist!'.format(self.file_path))
sys.exit()
else:
with open(self.file_path) as file:
while True:
line = file.readline().rstrip()
if line =='$BoundariesFormat':
file_format = file.readline().rstrip()
if file_format == 'v1.0':
print('File found!')
print('Boundaries condition file format: '+file_format)
else:
print('Format not suported')
sys.exit()
if line == '$end':
break
def get_boundaries(self):
lines = []
nodes = []
with open(self.file_path) as file:
while True:
line = file.readline().rstrip()
if line =='$Nodes':
self.nodes_size = np.fromstring(file.readline().rstrip(), sep=' ')
for i in range(int(self.nodes_size)):
data = int(file.readline().rstrip())
nodes.append(data)
self.nodes = nodes
if line == '$end':
break
return self.nodes
def get_r_s(self, nodes, dof_per_node):
s = []
r = []
if dof_per_node ==2:
for i in range(len(nodes)):
# NODOS CON VINCULO DE 3ra ESPECIE
if nodes[i] == 2:
s.append(2*i)
s.append(2*i+1)
# NODO CON VINCULO DE 2da ESPECIE en X
elif nodes[i] == 11:
s.append(2*i)
r.append(2*i+1)
# NODO CON VINCULO DE 2da ESPECIE EN Y
elif nodes[i] == 12:
s.append(2*i+1)
r.append(2*i)
# NODO CON FUERZAS EN X Y VINCULOS DE 2da ESPECIE (en Y)
elif nodes[i]==13:
s.append(2*i+1)
r.append(2*i)
elif nodes[i]==14:
s.append(2*i+1)
r.append(2*i)
# NODO CON FUERZAS EN Y Y VINCULOS DE 2da ESPECIE (en X)
elif nodes[i]==15:
r.append(2*i+1)
s.append(2*i)
elif nodes[i]==16:
r.append(2*i+1)
s.append(2*i)
# NODOS CON FUERZAS Y VINCULOS de 3ra ESPECIE
elif nodes[i]==7:
s.append(2*i)
s.append(2*i+1)
elif nodes[i]==8:
s.append(2*i)
s.append(2*i+1)
elif nodes[i]==9:
s.append(2*i)
s.append(2*i+1)
elif nodes[i]==10:
s.append(2*i)
s.append(2*i+1)
else:
r.append(2*i)
r.append(2*i+1)
elif dof_per_node == 3:
for i in range(len(nodes)):
# NODOS CON VINCULO DE 3ra ESPECIE
if nodes[i] == 2:
s.append(3*i)
s.append(3*i+1)
s.append(3*i+2)
# SOLAMENTE ESTA MODIFICADO EL CODIGO DE ARRIBA, SE DEBE MODIFICAR TAMBIEN LOS CODIGOS DE
# ABAJO PARA RESOLVER UN MESHADO 3D
# NODO CON VINCULO DE 2da ESPECIE en X
elif nodes[i] == 11:
s.append(2*i)
r.append(2*i+1)
# NODO CON VINCULO DE 2da ESPECIE EN Y
elif nodes[i] == 12:
s.append(2*i+1)
r.append(2*i)
# NODO CON FUERZAS EN X Y VINCULOS DE 2da ESPECIE (en Y)
elif nodes[i]==13:
s.append(2*i+1)
r.append(2*i)
elif nodes[i]==14:
s.append(2*i+1)
r.append(2*i)
# NODO CON FUERZAS EN Y Y VINCULOS DE 2da ESPECIE (en X)
elif nodes[i]==15:
r.append(2*i+1)
s.append(2*i)
elif nodes[i]==16:
r.append(2*i+1)
s.append(2*i)
# NODOS CON FUERZAS Y VINCULOS de 3ra ESPECIE
elif nodes[i]==7:
s.append(2*i)
s.append(2*i+1)
elif nodes[i]==8:
s.append(2*i)
s.append(2*i+1)
elif nodes[i]==9:
s.append(2*i)
s.append(2*i+1)
elif nodes[i]==10:
s.append(2*i)
s.append(2*i+1)
else:
r.append(3*i)
r.append(3*i+1)
r.append(3*i+2)
elif dof_per_node == 1:
for i in range(len(nodes)):
if nodes[i] == 2:
s.append(i)
else:
r.append(i)
r = np.array(r)
s = np.array(s)
return r, s
def get_forces(self, nodes, dof_per_node):
if dof_per_node == 2:
F = np.zeros(2*len(nodes)).reshape(-1,1)
f1 = float(input('X Force: '))
f2 = float(input('Y Force: '))
for i in range(len(nodes)):
if nodes[i] == 3:
F[2*i] = f1
elif nodes[i] == 4:
F[2*i]=-f1
elif nodes[i] == 5:
F[2*i+1] =f2
elif nodes[i] == 6:
F[2*i+1] =-f2
else:
print('Cant assembly Force Vector. Exiting')
exit()
return F
def get_stress(self, nodes, lines, forces, nodetype, ElementType, dof_per_node):
F = np.zeros(dof_per_node*len(nodes)).reshape(-1,1)
if ElementType == 2:
thickness = 1
for i in range(len(lines)):
# Fuerza aplicada en la linea 1 (la de arriba)
nod1 = nodes[lines[i][2]-1]
nod2 = nodes[lines[i][3]-1]
longit = np.linalg.norm(nod1-nod2)
# FUERZAS SOLAS
# 3 - FUERZAS X POSITIVAS
if nodetype[lines[i][2]-1] == 3:
F[2*(lines[i][2]-1)] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 3:
F[2*(lines[i][3]-1)] += longit*thickness*forces[lines[i][0]]/2
# 4 - FUERZAS X NEGATIVAS
if nodetype[lines[i][2]-1] == 4:
F[2*(lines[i][2]-1)] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 4:
F[2*(lines[i][3]-1)] -= longit*thickness*forces[lines[i][0]]/2
# 5 - FUERZAS Y POSITIVAS
if nodetype[lines[i][2]-1] == 5:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 5:
F[(2*(lines[i][3]-1))+1] += longit*thickness*forces[lines[i][0]]/2
# 6 - FUERZAS Y NEGATIVAS
if nodetype[lines[i][2]-1] == 6:
F[(2*(lines[i][2]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 6:
F[(2*(lines[i][3]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
# FUERZAS Y VINCULOS
# 7 - FUERZAS X POSITIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 7:
F[2*(lines[i][2]-1)] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 7:
F[2*(lines[i][3]-1)] += longit*thickness*forces[lines[i][0]]/2
# 8 - FUERZAS X NEGATIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 8:
F[2*(lines[i][2]-1)] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 8:
F[2*(lines[i][3]-1)] -= longit*thickness*forces[lines[i][0]]/2
# 9 - FUERZAS Y POSITIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 9:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 9:
F[(2*(lines[i][3]-1))+1] += longit*thickness*forces[lines[i][0]]/2
# 10 - FUERZAS Y NEGATIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 10:
F[(2*(lines[i][2]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 10:
F[(2*(lines[i][3]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
# FUERZAS Y RESTRICCIONES
# 13 - FUERZA X POSITIVA + RESTRICCION Y
if nodetype[lines[i][2]-1] == 13:
F[2*(lines[i][2]-1)] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 13:
F[2*(lines[i][3]-1)] += longit*thickness*forces[lines[i][0]]/2
# 14 - FUERZA X NEGATIVA + RESTRICCION Y
if nodetype[lines[i][2]-1] == 14:
F[2*(lines[i][2]-1)] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 14:
F[2*(lines[i][3]-1)] -= longit*thickness*forces[lines[i][0]]/2
# 9 - FUERZAS Y POSITIVAS + RESTRICCION X
if nodetype[lines[i][2]-1] == 15:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 15:
F[(2*(lines[i][3]-1))+1] += longit*thickness*forces[lines[i][0]]/2
# 10 - FUERZAS Y NEGATIVAS + RESTRICCION X
if nodetype[lines[i][2]-1] == 16:
F[(2*(lines[i][2]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 16:
F[(2*(lines[i][3]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if ElementType == 4:
for i in range(len(lines)):
# Fuerza aplicada en la linea 1 (la de arriba)
a = nodes[lines[i][2]-1]
b = nodes[lines[i][3]-1]
c = nodes[lines[i][4]-1]
cross_prod = np.cross( b-a, c-a )
area = 0.5 * np.linalg.norm(cross_prod)
# FUERZAS SOLAS
# 3 - FUERZAS X POSITIVAS
if nodetype[lines[i][2]-1] == 3:
F[3*(lines[i][2]-1)] += area*forces[lines[i][0]]/3
if nodetype[lines[i][3]-1] == 3:
F[3*(lines[i][3]-1)] += area*forces[lines[i][0]]/3
if nodetype[lines[i][4]-1] == 3:
F[3*(lines[i][4]-1)] += area*forces[lines[i][0]]/3
# 4 - FUERZAS X NEGATIVAS
if nodetype[lines[i][2]-1] == 4:
F[3*(lines[i][2]-1)] -= area*forces[lines[i][0]]/3
if nodetype[lines[i][3]-1] == 4:
F[3*(lines[i][3]-1)] -= area*forces[lines[i][0]]/3
if nodetype[lines[i][4]-1] == 4:
F[3*(lines[i][4]-1)] -= area*forces[lines[i][0]]/3
# TERMINAR DE HACER LO MISMO QUE HICE ARRIBA CON TODOS LOS IF DE ABAJO
# 5 - FUERZAS Y POSITIVAS
if nodetype[lines[i][2]-1] == 5:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 5:
F[(2*(lines[i][3]-1))+1] += longit*thickness*forces[lines[i][0]]/2
# 6 - FUERZAS Y NEGATIVAS
if nodetype[lines[i][2]-1] == 6:
F[(2*(lines[i][2]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 6:
F[(2*(lines[i][3]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
# FUERZAS Y VINCULOS
# 7 - FUERZAS X POSITIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 7:
F[2*(lines[i][2]-1)] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 7:
F[2*(lines[i][3]-1)] += longit*thickness*forces[lines[i][0]]/2
# 8 - FUERZAS X NEGATIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 8:
F[2*(lines[i][2]-1)] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 8:
F[2*(lines[i][3]-1)] -= longit*thickness*forces[lines[i][0]]/2
# 9 - FUERZAS Y POSITIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 9:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 9:
F[(2*(lines[i][3]-1))+1] += longit*thickness*forces[lines[i][0]]/2
# 10 - FUERZAS Y NEGATIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 10:
F[(2*(lines[i][2]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 10:
F[(2*(lines[i][3]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
# FUERZAS Y RESTRICCIONES
# 13 - FUERZA X POSITIVA + RESTRICCION Y
if nodetype[lines[i][2]-1] == 13:
F[2*(lines[i][2]-1)] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 13:
F[2*(lines[i][3]-1)] += longit*thickness*forces[lines[i][0]]/2
# 14 - FUERZA X NEGATIVA + RESTRICCION Y
if nodetype[lines[i][2]-1] == 14:
F[2*(lines[i][2]-1)] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 14:
F[2*(lines[i][3]-1)] -= longit*thickness*forces[lines[i][0]]/2
# 9 - FUERZAS Y POSITIVAS + RESTRICCION X
if nodetype[lines[i][2]-1] == 15:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 15:
F[(2*(lines[i][3]-1))+1] += longit*thickness*forces[lines[i][0]]/2
# 10 - FUERZAS Y NEGATIVAS + RESTRICCION X
if nodetype[lines[i][2]-1] == 16:
F[(2*(lines[i][2]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if nodetype[lines[i][3]-1] == 16:
F[(2*(lines[i][3]-1))+1] -= longit*thickness*forces[lines[i][0]]/2
if ElementType == 1:
for i in range(len(lines)):
# FUERZAS SOLAS
# 3 - FUERZAS X POSITIVAS
if nodetype[lines[i][2]-1] == 3:
F[2*(lines[i][2]-1)] += thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 3:
F[2*(lines[i][3]-1)] += thickness*forces[lines[i][0]]
# 4 - FUERZAS X NEGATIVAS
if nodetype[lines[i][2]-1] == 4:
F[2*(lines[i][2]-1)] -= thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 4:
F[2*(lines[i][3]-1)] -= thickness*forces[lines[i][0]]
# 5 - FUERZAS Y POSITIVAS
if nodetype[lines[i][2]-1] == 5:
F[(2*(lines[i][2]-1))+1] += thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 5:
F[(2*(lines[i][3]-1))+1] += thickness*forces[lines[i][0]]
# 6 - FUERZAS Y NEGATIVAS
if nodetype[lines[i][2]-1] == 6:
F[(2*(lines[i][2]-1))+1] -= thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 6:
F[(2*(lines[i][3]-1))+1] -= thickness*forces[lines[i][0]]
# FUERZAS Y VINCULOS
# 7 - FUERZAS X POSITIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 7:
F[2*(lines[i][2]-1)] += thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 7:
F[2*(lines[i][3]-1)] += thickness*forces[lines[i][0]]
# 8 - FUERZAS X NEGATIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 8:
F[2*(lines[i][2]-1)] -= thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 8:
F[2*(lines[i][3]-1)] -= thickness*forces[lines[i][0]]
# 9 - FUERZAS Y POSITIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 9:
F[(2*(lines[i][2]-1))+1] += thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 9:
F[(2*(lines[i][3]-1))+1] += thickness*forces[lines[i][0]]
# 10 - FUERZAS Y NEGATIVAS + VINCULO 3ra especie
if nodetype[lines[i][2]-1] == 10:
F[(2*(lines[i][2]-1))+1] -= thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 10:
F[(2*(lines[i][3]-1))+1] -= thickness*forces[lines[i][0]]
# FUERZAS Y RESTRICCIONES
# 13 - FUERZA X POSITIVA + RESTRICCION Y
if nodetype[lines[i][2]-1] == 13:
F[2*(lines[i][2]-1)] += thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 13:
F[2*(lines[i][3]-1)] += thickness*forces[lines[i][0]]
# 14 - FUERZA X NEGATIVA + RESTRICCION Y
if nodetype[lines[i][2]-1] == 14:
F[2*(lines[i][2]-1)] -= thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 14:
F[2*(lines[i][3]-1)] -= thickness*forces[lines[i][0]]
# 9 - FUERZAS Y POSITIVAS + RESTRICCION X
if nodetype[lines[i][2]-1] == 15:
F[(2*(lines[i][2]-1))+1] += longit*thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 15:
F[(2*(lines[i][3]-1))+1] += thickness*forces[lines[i][0]]
# 10 - FUERZAS Y NEGATIVAS + RESTRICCION X
if nodetype[lines[i][2]-1] == 16:
F[(2*(lines[i][2]-1))+1] -= thickness*forces[lines[i][0]]
if nodetype[lines[i][3]-1] == 16:
F[(2*(lines[i][3]-1))+1] -= thickness*forces[lines[i][0]]
if dof_per_node == 1:
F = F[0::2]
return F